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Finding the Fourth Proportional to 91,437.91, 137,166.10 and 34,497.54

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Solution

The fourth proportional to 91,437.91, 137,166.10 and 34,497.54 is: 51,749.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,437.91 : 137,166.10 = 34,497.54 : x
  2. Step 2: Convert to fraction form
    91,437.91/137,166.10 = 34,497.54/x
  3. Step 3: Cross multiply
    91,437.91x = 137,166.10 × 34,497.54
  4. Step 4: Simplify right side
    91,437.91x = 4,731,893,021.39
  5. Step 5: Solve for x
    x = 4,731,893,021.39/91,437.91
  6. Step 6: Final answer
    x = 51,749.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.